New Frigidaire FFFU13F2VW does great, then doesn't (0*F then it's at 40*+F)

[Gilligan8]

So grabbed this bad boy for a steal at $175 at HD, it was the display model and we happened to be there the DAY they marked it down.

Brought it home (laid on it's back) which took a whole 10 mins tops.  Stood it back up and let it sit for 2 hours before plugging it in.

It would run between 0* and 10* (it's empty) with a small thermometer (food service spot checking?)  Goes from 0-220*F.

We are using this for Special FX prosthetics for TV Shows and Movies as they need to be frozen to be removed out of the molds.  -15* is ideal but 0* is fine too.

I was rocking and rolling putting pieces in and then taking them out.  At one point I cranked it all the way up, hoping to get it to stay at 0* vs fluctuating to 10*.  It was freezing the pieces really hard, it was great.

I am opening and closing it a good bit as I make the pieces then bring them over and put them in.  Probably 5-10 mins between opening and then open for like 5 seconds as I put it on a shelf and close it.  Also these pieces aren't big... scars, and scratches, and swollen eye pieces for a new Marine Netflix show.  18 blocks of silicone (average 1/4" thick and 3x5") and about 32 pieces, biggest is probably 1-2 cubic inches (with excess squeeze out) and the smallest are just SUPER tiny scratches that are 1/2 inch of just smeared on material.  The material is pros-aide which is essentially a glue.

By the end of the day I noticed a lot of sweating going on and frost/condensation on the pieces.  Looked and it was 40*!  Hmmm.  Turned the dial back down and left it alone for a while... came down a bit but eventually I had to go home.  Next day it was at like 10* again.

Now it has got up to 50* , I even made sure it was pulled away from the wall.  I hear the defrost cycle running as I hear the sizzle of water dripping on the defrost elements sometimes when I have it open.  The bottom tray for the condenser coils has bout an inch of water as it looks like it was designed to have for a cooling effect.

Hot side is hot, but the cold side is just cool going back into the compressor... which I guess if it's doing it's job and pulling the heat out that's how it should be.  I guess I'm just thinking in an AC unit it usually returns pretty darn cold.

The unit did have a small ding in the back but it's not very big... pictures attached (finger in there to show it's not really as deep as the other pics kind of make it look).

Sorry for all the extra info, just figured be better to be as detailed as possible to avoid someone not knowing something that would help them to help me understand what is going on.

Thanks so much,
Gilligan